The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 1983
Filed:
Dec. 22, 1980
Applicant:
Inventor:
Jan Lohstroh, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; G11C / ;
U.S. Cl.
CPC ...
357 59 ; 357 45 ; 365105 ;
Abstract
In a diode matrix of a permanent memory (ROM) the word line and bit line system is formed by a system of strip-shaped zones of one conductivity type provided in the silicon body and in the another system is formed by polycrystalline silicon tracks of the opposite conductivity type provided on the surface and forming mono-poly p-n junctions with the strip-shaped zones. High packing density and high speed are obtained.